DSS’s Slit-Tube Mast Deployer is an elastically deployable boom that is leveraged from DSS’s broad ROSA solar array flight heritage. The silt-tube boom can be metallic or composite material in construction and typically relies on its own strain energy for deployment. Composite constructed slit-tube booms are produced with DSS’s proprietary and patented materials and manufacture processing techniques to eliminate creep and relaxation phenomena typically associated with other competing high-strain composite products. The slit-tube boom system can also be deployed with a motor if higher push force is required. These single piece mast deployers are suitable as antennas, or as deployable structures for deployment of magnetometers, sensors, solar arrays, other payloads, and/or membranes.